LH
This test measures the level of luteinizing hormone (LH). A hormone is a chemical messenger in your bloodstream that controls the actions of certain cells or organs. LH is usually measured in a sample of your blood. But in certain cases, it may be measured in urine (pee).
LH testing is used to help diagnose conditions that cause too much or too little LH. The specific way the test is used depends on your sex, age, and symptoms.
Source: MedlinePlus, U.S. National Library of MedicineNormal range
13 published ranges, each from a named source 1.39.6 IU/L drawn: male, 18 y+ · Mayo Clinic Laboratories (Test Catalog)
- Male · 18 y+
- 1.3–9.6 IU/L (varies by lab)ARUP 1.7–8.6 · Mayo 1.3–9.6 IU/L
These labs do not agree for male · 18 y+: the published adult ranges differ by up to 31%, so the same result can read as normal at one lab and be flagged at another — ARUP 1.7–8.6 · Mayo 1.3–9.6 IU/L. Both are real published values, shown as each lab states them.
Ranges from ARUP Laboratories Test Directory, Mayo Clinic Laboratories (Test Catalog).All source ranges (13)
| Source | Sex | Age | Range |
|---|---|---|---|
| ARUP Laboratories Test Directory | Female | 7 y – 9 y | 0–0.7 IU/L |
| ARUP Laboratories Test Directory | Female | 10 y – 12 y | 0–6.8 IU/L |
| ARUP Laboratories Test Directory | Female | 13 y – 15 y | 0.3–23 IU/L |
| ARUP Laboratories Test Directory | Female | 16 y – 17 y | 0–26.4 IU/L |
| ARUP Laboratories Test Directory | Male | 7 y – 9 y | 0–0.7 IU/L |
| ARUP Laboratories Test Directory | Male | 10 y – 12 y | 0–3.4 IU/L |
| ARUP Laboratories Test Directory | Male | 13 y – 15 y | 0.3–5.6 IU/L |
| ARUP Laboratories Test Directory | Male | 16 y – 17 y | 1.1–9 IU/L |
| ARUP Laboratories Test Directory | Male | 18 y+ | 1.7–8.6 IU/L |
| Mayo Clinic Laboratories (Test Catalog) | Female | ≤ 18 y | 0.5–41.7 IU/L |
| Mayo Clinic Laboratories (Test Catalog) | Male | ≤ 18 y | 1.3–9.8 IU/L |
| Mayo Clinic Laboratories (Test Catalog) | Male | ≤ 14 y | 0.1–7.8 IU/L |
| Mayo Clinic Laboratories (Test Catalog) | Male | 18 y+ | 1.3–9.6 IU/L |
What an abnormal result can be associated with
- A high result
- Elevated circulating luteinizing hormone level
- A low result
- Decreased circulating luteinizing hormone level
details
- Sample
- Serum or plasma · LOINC
- Collection
- Serum gel tube · 0.6 mL · Mayo Clinic Laboratories (Test Catalog)
- Part of
- Follitropin and Lutropin panel
- Listed under
- Female Infertility · Hormones · Pituitary Disorders · Primary Ovarian Insufficiency
- Code
- LOINC 10501-5 · IU/L
- Also known as
- Lutropin, ICSH, Lutenin, Lutenizing hormone, Ovulation test
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